JP2008521631A - Method and apparatus for machining ball bosses - Google Patents

Abstract

  The present invention is a method for machining a joint inner member 11 of a constant velocity joint, the joint inner member 11 having a longitudinal axis A and having at least one guide surface, The joint inner member 11 is guided by the guide surface so as to be tiltable over the entire circumference in the ball cage, and the joint inner member 11 has a plurality of ball tracks 12 distributed over the entire circumference of the guide surface. The ball track 12 has a guide surface divided into a plurality of corresponding guide webs 13 and a torque transmitting ball is held in the ball track 12 so as to be movable in the longitudinal direction. Related to things. According to the invention, it has been proposed to mechanically machine each at least one ball track 12 and at least one guide web 13 simultaneously.

Description

  The present invention relates to a method and apparatus for machining a joint inner member, also called a ball boss, of a constant velocity joint. Such a joint inner member has a longitudinal axis A and has at least one guide surface. By this guide surface, the joint inner member is guided so as to be able to tilt relative to the ball cage over the entire circumference. A plurality of ball tracks distributed over the entire circumference are formed on the guide surface. These ball tracks divide the guide surface into corresponding guide webs. In the ball track, the torque transmission ball of the constant velocity joint can be held movably in the longitudinal direction. This type of constant velocity joint, as is generally known, includes a joint outer member having a first ball track, a ball cage in which a plurality of balls are held, and a target here. And a joint inner member with a second ball track that is not detailed below. The joint inner member of the type described above, although not actually proprietary, is particularly dependent on the applicants AC (angular contact), UF (undercut free), DO (double offset), HAI (high angle inboard) and TBJ (twin). Suitable for constant velocity joints called ball joints). These names have evolved and are already sufficiently high-level concepts.

  In the production of known types of joint inner members, it is already known to first perform the processing steps in the individual ball tracks and then the processing steps in the guide web in one common clamping to the workpiece. . In this case, when the ball track is processed, the ball boss is firmly held, and the ball track is mechanically processed for each track by the rotating tool. In this case, particularly hardened tracks are ground. Thereafter, when the ball boss is driven to rotate, the ball boss is first turned over the entire circumference and then molded and ground.

  The object of the present invention is to further streamline the method for producing ball bosses of the type mentioned at the outset and to provide an apparatus for carrying out the listed methods.

  The first solution is a method for machining a joint inner member of a constant velocity joint, the joint inner member having a longitudinal axis and having at least one guide surface, The inner surface of the joint is guided by the guide surface so as to be able to tilt around the entire circumference of the ball cage, and the inner member of the joint has a plurality of ball tracks distributed over the entire circumference of the guide surface. The ball track has a guide surface divided into a corresponding plurality of guide webs, and a torque transmitting ball is held in the ball track so as to be movable in the longitudinal direction. Characterized by mechanically machining one ball track and at least one guide web simultaneously.

  With the method according to the invention, the machining time can be shortened with an advantageous preparation time, i.e. a single tightening, as well as the conventional and conventional preparation times, and the stop time of individual tools can be significantly reduced. . The mechanical processing described above may include a milling method, a grinding method, or a combination of both methods. The method according to the invention requires a significantly reduced investment cost with a given yield.

  The quality improvement is to process one ball track and one guide web located on the opposite side in the radial direction, especially in the case of another subsequent embodiment, namely an odd number of ball tracks and guide webs. Or, in the case of an even number of ball tracks and guide webs, it is possible to maintain the simultaneous machining of one ball track and one guide web adjacent to a radially opposite ball track. It becomes. Thereby, no or only a slight lateral force is applied to the clamping part of the workpiece, so that the track and the guide web can be produced with increased accuracy. Since the rotary tool used is a forming tool, tracks of any arbitrary cross section can be formed.

  A further improvement in productivity is the simultaneous processing of two ball tracks and two surfaces or guide webs each, or in particular at least two ball tracks located in parallel planes at the same time in the longitudinal direction simultaneously. This is possible by machining at least one or one or two guide webs at least partly simultaneously for both ball tracks.

  Mainly according to a second solution that provides the same advantages as described above, a method for machining a joint inner member of a constant velocity joint, the inner member having a longitudinal axis. At least one guide surface, and the guide inner surface guides the joint inner member so as to be able to tilt around the entire circumference of the ball cage, and the joint inner member extends over the entire circumference of the guide surface. A plurality of distributed ball tracks, wherein the ball track divides the guide surface into a corresponding plurality of guide webs, in which the torque transmitting balls are held movably in the longitudinal direction; It is recommended that at least two ball tracks at the same time be machined longitudinally at the same time. It is.

  Furthermore, according to a third solution which also provides the same advantages as described above, there is provided a method for machining a joint inner member of a constant velocity joint, the joint inner member having a longitudinal axis. At least one guide surface by which the inner joint member is guided in a ball cage so as to be tiltable over the entire circumference, and the inner joint member is distributed over the entire circumference of the guide surface. The ball track has a guide surface divided into a plurality of corresponding guide webs, and a torque transmitting ball is held in the ball track so as to be movable in the longitudinal direction. It is suggested that at least two guide webs be machined in the longitudinal direction at the same time. That.

  Even in the case of the method described here, in the case of an odd number of ball tracks and guide webs, each of the first ball track or web surface and the partial surface or web surface or ball track located on the opposite side in the radial direction. Process adjacent second ball tracks or guide webs simultaneously or, in the case of an even number of ball tracks and guide webs, simultaneously process two ball tracks or guide webs located on opposite sides in the radial direction simultaneously As a result, quality improvement can be achieved. This also makes it possible to sufficiently balance the forces acting on the workpiece, whereby the lateral force and the bearing load at the tightening portion can be reduced, and the manufacturing accuracy can be improved.

  In an advantageous method guide as described in detail with reference to the drawings, the ball track comprises a rotational plane perpendicularly intersecting the longitudinal axis of the joint inner member and a radial plane extending through the longitudinal axis relative to the joint inner member. It is proposed to machine with a rotary tool with a center point guided by the.

  As an alternative to this, the ball track is machined by a rotary tool with a rotational axis oriented substantially radially with respect to the longitudinal axis of the joint inner member, in which case the rotational axis is It is possible to be guided through the longitudinal axis of the joint inner member in a radial plane relative to the joint inner member.

  With respect to the fabrication of the guide web, the guide web is arranged with a rotational axis perpendicularly intersecting the longitudinal axis of the joint inner member and a radial plane extending through the longitudinal axis of the joint inner member relative to the joint inner member. It has been proposed to machine with a rotating tool with a center point guided by the. This is because, based on the hollow shape of the processed surface, only a disk tool can be used here, and a finger tool cannot be used. In order to provide the possibility of processing a plurality of guide webs without pivoting of the clamped workpiece with one tool, according to a supplementary method guide, the guide webs are connected to the joint inner member. On the other hand, it has been proposed to work with a rotary tool that has a center point that performs a pivoting movement about the longitudinal axis of the joint inner member.

  Further, in accordance with the above-described problem, according to the first solution of the present invention, there is provided an apparatus for processing a joint inner member of a constant velocity joint, wherein the joint inner member has a longitudinal axis. The joint inner member is guided by the guide surface so as to be capable of tilting over the entire circumference of the ball cage, and the joint inner member is disposed on the entire guide surface. A plurality of ball tracks distributed over the circumference, the ball track dividing the guide surface into a corresponding plurality of guide webs, in which the torque transmitting balls can be moved longitudinally; In the type adapted to be held, the device comprises a clamping device for the joint inner member, at least one ball track, And a least two rotary tool for machining simultaneously and one guide web in the longitudinal direction even without.

  In a second solution according to the invention, which mainly leads to the same result, an apparatus for processing a joint inner member of a constant velocity joint, the joint inner member having a longitudinal axis and having at least one The joint surface is guided by the guide surface so as to be tiltable over the entire circumference of the ball cage, and the joint inner member is distributed over the entire circumference of the guide surface. A ball track having a guide surface divided into a plurality of corresponding guide webs, and a torque transmitting ball is held in the ball track so as to be movable in a longitudinal direction. In this type of device, the device is longitudinally identical to the clamping device for the inner member of the joint with at least two ball tracks. And a least two rotary tool for processing the.

  Furthermore, according to another solution of the invention, which also leads to the advantageous results mentioned above, an apparatus for machining a joint inner member of a constant velocity joint, the inner member having a longitudinal axis. And having at least one guide surface, by which the inner joint member is guided in a ball cage so as to be tiltable over the entire circumference, and the inner joint member is arranged around the entire circumference of the guide surface. A plurality of ball tracks distributed over the same, wherein the ball track divides the guide surface into a corresponding plurality of guide webs, in which the torque transmitting balls are held longitudinally movable In a type adapted to include a clamping device for the joint inner member and at least two guide webs. And a least two rotary tool for machining simultaneously in the longitudinal direction.

  Based on the simultaneous processing of each of the plurality of functional surfaces on the joint inner member according to the present invention, the productivity is improved at a given investment cost. In this case, the clamping device for the joint inner member has feed means for feeding at least in the longitudinal direction of the joint inner member, and at least two rotary tools are each exclusively for the longitudinal axis of the joint inner member. If it is proposed to have feeding means for feeding in the radial direction, the device according to the invention can be made particularly simple and inexpensive. In this case, it is additionally proposed that the tightening device for the joint inner member additionally has adjusting means for adjusting the tightening device about the longitudinal axis of the joint inner member. ing. A clamping device for the joint inner member may be adapted to clamp the joint inner member, particularly in the axial direction.

  After each return of the rotating tool radially outwards, the workpiece can be rotated within the clamping device by the pitch angle of the ball track, and the next synchronous machining step for the two functional surfaces is performed. It can be repeated under a purely axial feed of the piece and under a pure radial feed movement of the rotary tool. Alternatively, an adjusting means for adjusting the rotation of the rotary tool around the longitudinal axis of the joint inner member may be provided.

  In this case, it is advantageous if the rotational axes of all rotary tools that are simultaneously engaged in processing, that is, simultaneously engaged with the joint inner member, are located in one common plane.

  According to another configuration, the rotation axis of the rotary tool is located in at least two planes parallel to each other, in particular the tool for smoothing the guide web is located in the second common plane. It is proposed. Thus, by simple means, another tool can be used with the same clamping device unchanged. This tool probably cannot be provided in an annular arrangement in one plane relative to the longitudinal axis of the workpiece.

  As already mentioned, the rotary tool for the ball track is a disc tool, the axis of rotation of which may intersect the longitudinal axis of the joint inner member at a distance. However, the rotary tool for the ball track may be a finger tool, and the axis of rotation of the finger tool may be oriented substantially radially with respect to the longitudinal axis of the joint inner member. It is true that the rotating tool on the web surface can be formed as a disk tool.

  Advantageous embodiments of the method according to the invention, in which advantageous configurations of the device according to the invention can be recognized, are described below with reference to the drawings.

FIG. 1 a shows the mechanical working configuration according to the invention of the joint inner member 11 of the constant velocity joint according to the first solution. The joint inner member of the constant velocity joint is often called a ball boss. The longitudinal axis of the joint inner member 11 is indicated by the symbol A. This code A will continue to be used repeatedly for association with the placement and movement of the tool used. In the joint inner member 11, six ball tracks 12 distributed over the entire circumference can be recognized. These ball tracks 12 have a substantially invariant cross section in the longitudinal direction and are here formed as substantially semicircular round tracks. The ball tracks 12 are separated from each other by a web surface 13. The web surface 13 is a partial surface of the partially spherical virtual guide surface of the joint inner member 11. On this partial surface, the joint inner member 11 is guided so as to be able to be bent relative to the ball cage. Usually, the aforementioned guide surface is a single zone division. However, the guide surface may be interrupted by an intermediate circumferential turning section, thereby forming two spherical bands that are spaced apart from each other in the axial direction as a virtual guide surface. Yes. An unguided intermediate region is located between the two ball zones. At the partition edge of the guide web 13 or the ball track 12, edge break portions 14 and 15 can be recognized, respectively. The edge breaks 14, 15 have no major significance for the manufacturing process according to the invention. The joint inner member 11 coaxially with the longitudinal axis A has a through opening 16 with an inner shaft tooth row 17. The through-opening 16 is provided for inserting a driving shaft pin. In the simultaneous tool engagement according to the present invention to the joint inner member 11, a first rotary tool 21 forming a forming tool for rotating the ball track 12 and a rotary forming tool for processing the guide web 13 are formed. A second rotary tool 31 is provided. The rotation axis of the tool 21 is indicated by the symbol R ₂₁ , and the rotation axis of the tool 31 is indicated by the symbol R ₃₁ . Two axis lines X ₂₁ and X ₃₁ are written perpendicular to the direction of the longitudinal axis A, respectively. Both axes X ₂₁ , X ₃₁ intersect the longitudinal axis A at the same point. The significance of both axes X ₂₁ and X ₃₁ will be described with reference to subsequent drawings. An arc-shaped arrow P indicated by a one-dot chain line indicates the adjustability of the tools 21 and 31 relative to the joint inner member 11. In this case, the center of motion is located on the longitudinal axis A. However, this exercise potential is just one choice. Alternatively, the holding device for the joint inner member 11 may be formed so as to be adjustable.

FIGS. 1b and 1c show the method and apparatus shown in FIG. 1a in a folded longitudinal section through the axis A and the axes X ₂₁ and X _31. FIG. The joint inner member 11 can be seen with a through opening 16 with an inner tooth row 17 extending coaxially with respect to the longitudinal axis A. One ball track 12 is shown in a state of being engaged with the rotary tool 21. One web surface 13 is shown in a state engaged with the rotary tool 31. Movement relative tool 21, 31 relative to the inner joint member 11, while the inner joint member 11, is purely caused to travel in the direction of the double arrow Z ₁₁ in the axial direction with respect to the clamping axis Z The rotary tools 21 and 31 are performed so as to travel along the axes X ₂₁ and X ₃₁ exclusively in the directions of double arrows X ₁₂ and X ₁₃ , respectively. In this case, the axes X ₂₁ and X ₃₁ are located on a common plane located in the radial direction with respect to the tightening axis Z. In this case, the axes X ₂₁ , X ₃₁ are coincident according to FIG. 1b and shifted parallel to each other according to FIG. 1c. In order to proceed to machining of another ball track and another web surface after machining one ball track 12 and one web surface 13 completely simultaneously, the tools 21 and 31 have a radius with respect to the tightening axis Z. The joint inner member 11 can be rotated by a pitch angle of the ball track 12 around the tightening axis Z. Thereby, the necessary movement and control modes of the device are the rotation of the clamping device and the movement of the clamping device in the direction Z and the rotational axes R ₂₁ , R along the radial axes X ₂₁ , X _{31. 31} purely axial movements.

In FIG. 1d, a method and apparatus similar to FIG. 1a for a different joint inner member 11 is shown in a folded longitudinal section through the axis A and the axes X ₂₁ , X ₃₁ . The joint inner member 11 is fastened in an axial direction to a fastening device 18 having two parts. The joint inner member 11 can be seen with a through opening 16 extending coaxially with respect to the longitudinal axis A. One straight ball track 12 is shown in engagement with the rotating tool 21. One web surface 13 is shown in a state engaged with the rotary tool 31. The path of the tools 21 and 31 relative to the joint inner member 11 is indicated by a dashed line. However, the actual motion, the inner joint member 11, whereas is purely caused to run in the axial direction in the direction of the double arrow Z ₁₁ relative to the clamping axis Z, the rotary tool 21 and 31, exclusively respectively two It is carried out so as to travel along the axes X ₂₁ , X ₃₁ in the direction of the double arrows X ₁₂ , X ₁₃ , in which case the former is performed only for adjustment and the latter is performed during the entire process. Is called. In this case, the axes X ₂₁ and X ₃₁ are located on a common plane located in the radial direction with respect to the tightening axis Z. In order to proceed to machining of another ball track and another web surface after machining one ball track 12 and one web surface 13 completely simultaneously, the tools 21 and 31 have a radius with respect to the tightening axis Z. The joint inner member 11 can be rotated by a pitch angle of the ball track 12 around the tightening axis Z. Thereby, the necessary movement and control modes of the device are the rotation of the clamping device 18 and the movement of the clamping device 18 in the direction Z and the rotation axis R ₂₁ along the radial axes X ₂₁ , X _31. , R _{31 is} a pure axial movement.

  As can be seen in FIG. 1a, for the force compensation, an arrangement of the two tools 21, 31 located on the opposite side sufficiently in the radial direction is advantageous. In the case of the even number of ball tracks 12 shown here, it is necessary to deviate from this ideal by a half pitch angle of the ball track.

  Another set of tool pairs may be placed in a plane parallel to the drawing plane of FIG. 1a, so long as the mechanical processing requires a number of successive steps, such as milling and grinding, The joint inner member 11 can be fed to subsequent tool sets using purely axial feedability without tightening over the entire circumference. This tool set itself also requires only an axial feedability in the radial direction with respect to the tightening axis Z.

FIG. 2 shows another modified embodiment of the method shown in FIG. In this case, the illustration is made in the same manner as in FIG. 1 a, with the longitudinal axis A of the joint inner member 11 viewed in the axial direction. The same individual members are denoted by the same reference numerals as those in FIG. 1, and the description thereof can be referred to. In this case, differently and additionally, in addition to the rotary tool 21 for one ball track 12, a second rotary tool 22 for the ball track 12 'located radially opposite is shown. is there. Furthermore, in addition to the tool 31 for one web region 13, a similar further tool 32 for the web 13 'located on the opposite side in the radial direction is shown. In this case, the axes X ₂₁ and X ₃₁ form an angle of 90 °, and thus, the force balance with respect to the tightening axis Z is sufficiently present in the joint inner member 11 during mechanical processing. That is, unlike the configuration shown in FIG. 1, the combined force never acts on the tightening axis Z. Otherwise, here too, the joint inner member 11 is advantageously movable along the clamping axis Z and is pivotable about the clamping axis Z for alternation during the individual machining steps. Thus, it is true that the device is formed, whereas the tools ₂₁ , ₂₂ , ₃₁ , and ₃₂ are individually axial lines X ₂₁ , X ₂₂ , X ₃₁ , X that are located in the radial direction with respect to the axis Z, respectively. _It can only run in direction ₃₂ .

FIG. 3 shows a processing mode according to the present invention according to the third solution. In this case, one joint inner member 11 is again shown with the longitudinal axis A viewed in the axial direction. The same individual members are denoted by the same reference numerals as those in the above-described drawings, and the above-described drawings can be referred to. In this case, according to the present invention, simultaneous mechanical machining of the two ball tracks 12, 12 ′ is performed by the two rotary tools 21, 22. Both rotary tools 21, 22 engage in a corresponding and identical manner as shown in FIG. 2 with a ball track located on the opposite side in the radial direction. Also in this case, the joint inner member 11 about the axis Z is fed by the track pitch angle (a) each time in the axial direction of the longitudinal axis A of the joint inner member 11 along the tightening axis Z. Can be rotated. On the other hand, the rotationally driven tools 21 and 22 have only the possibility of axial movement in the direction of the double arrows X ₁₂ and X _{12 ′ in} the radial direction with respect to the tightening axis Z. In this case, the motion axes X ₂₁ , X ₂₂ of the tools ₂₁ , ₂₂ are located on a common plane, that is, in particular a common straight plane. Also in this case, the relative adjustability of the tools 21 and 22 with respect to the joint inner member 11 around the movement center point A may be provided by an arrow P ′ indicated by a one-dot chain line.

FIG. 4 shows a machining mode according to the present invention according to the fourth solution. In this case, one joint inner member 11 is again shown with the longitudinal axis A viewed in the axial direction. The same individual members are denoted by the same reference numerals as those in the above-described drawings, and the above-described drawings can be referred to. In this case, according to the invention, simultaneous mechanical machining of the two web regions 13, 13 ′ is performed by the two rotary tools 31 ′, 32. Both rotary tools 31 ′, 32 engage in the corresponding and the same manner as shown in FIG. 2 with web regions 13, 13 ′ located on opposite sides in the radial direction. In this case as well, the axial movement of the longitudinal axis A of the joint inner member along the tightening axis Z and, in addition, the rotation of the joint inner member around the axis Z by the track pitch angle (a) each time. The possibility of movement is generated. On the other hand, the rotationally driven tools 31 ′, 32 have only the possibility of movement of the axis in the direction of the double arrows X ₁₃ , X _{13 ′ in} the radial direction with respect to the tightening axis Z. In this case, the movement axes X _{31 ′} and X ₃₂ of the tools 31 ′ and 32 are located on a common plane, that is, in particular a common straight plane. Also in this case, relative adjustability of the tools 31 ′ and 32 with respect to the joint inner member 11 around the movement center point A may be provided by an arrow P ″ indicated by a one-dot chain line.

FIG. 5 shows another embodiment of the method according to the invention. In this case, here, the joint inner member 11 has four pairs of ball tracks 12 ₁ and 12 ₂ that extend in parallel with each other in pairs. These ball tracks 12 ₁ , 12 ₂ each have a wide first web region 13 ₁ located between two pairs and a narrow width located between a pair of two tracks 12 ₁ , 12 ₂ , respectively. Forming a _second web region 132. In this case, each pair of tracks 12 ₁ and 12 ₂ is processed by two rotary tools 23 and 24 for track processing. Both rotary tools 23 and 24 have a common rotation axis R ₂₃ , and are held in a common holding device 25 so as to be rotationally driven. The motion mode of motion mode and thus the tool 23, 24 of the holding device 25 can be interpreted as the direction of the radial half-linear X ₂₃ radially relative to the longitudinal axis A or clamping axis Z of the inner joint member. The web areas 13 ₁ and 13 ₂ are machined by one rotary tool 33 each time. The rotary tool 33 has a rotation axis R ₃₃ and is accommodated in the holding device 34 so as to be rotationally driven. Also even movement of the moving and thus the tool 33 of the holding device 34, takes place in the direction of the radial half-linear X ₃₃ in a radial direction relative to the longitudinal axis A and thus clamping axis Z of the inner joint member 11. In this case too, the axes R ₂₃ , R ₃₃ are preferably located in a common plane. The additional relative adjustability of the holding device 34 with respect to the holding device 25 is indicated by an arrow P ′ ″ indicated by a dashed line. This adjustability, without requiring the rotation of the workpiece around the clamping axis is performed, the holding device 34 one from the processing of the web regions 13 ₁ (as shown) of a single web regions 13 ₂ The machining center A can be adjusted around the center. Only after the processing of the _two web regions 13 ₁ , 13 ₂ is at least partly simultaneously with the processing of the tracks 12 ₁ , 12 ₂ is the pitch angle between the pair of tracks about the clamping axis Z, That is, in this case, it is rotated by 90 ° each time. In this case, the holding device 34 is returned to the starting position and turned. Alternatively, if the workpiece 11 is held firmly, the holding devices 25 and 34 may be adjusted together relative to the workpiece 11 about the movement center A.

  A supplementary arrangement with two tools for the above-described method changes, for example for simultaneous machining of two web regions, is also possible. In this case, however, both tools must have different axes of rotation.

FIG. 2 shows a method according to the invention by simultaneous processing of one ball track and one web surface, a) is a view of the longitudinal axis of the joint inner member in the axial direction, b) FIG. 6 is a diagram of the longitudinal axis of the joint inner member in the first variation as viewed in the radial direction; c) is a diagram of the longitudinal axis of the joint inner member in the second variation as viewed in the radial direction; d) is a view of the longitudinal axis of the joint inner member in another variant as seen in the radial direction. FIG. 4 shows the method according to the invention by simultaneous machining of two ball tracks and two web surfaces, with the longitudinal axis of the joint inner member viewed axially. FIG. 6 shows the implementation of the method according to the invention by simultaneous machining of two ball tracks, with the longitudinal axis of the joint inner member viewed in the axial direction. FIG. 3 shows the implementation of the method according to the invention by simultaneous machining of two web surfaces, with the longitudinal axis of the joint inner member viewed in the axial direction. FIG. 3 shows the implementation of the method according to the invention by simultaneous machining of two ball tracks and one web surface parallel to each other.

Explanation of symbols

11 inner joint member, 12, 12 _', 12 1, 12 ₂ ball tracks, 13, _13', 13 1, 13 ₂ web surface, 14 edge breaks, 15 edge breaks, 16 through opening 17 internal toothing, 18 Tightening Device, 21 Tool, 22 Tool, 23 Tool, 24 Tool, 25 Holding Device, 31, 31 'Tool, 32 Tool, 33 Tool, 34 Holding Device, A Longitudinal Axis, a Track Pitch Angle, P, P' , P ″, P ′ ″ arrows, R ₂₁ rotation axis, R ₂₂ rotation axis, R ₂₃ rotation axis, R ₃₁ , R _{31 ′} rotation axis, R ₃₂ rotation axis, R ₃₃ rotation axis, X ₁₂ , X _{12 '} Double arrow, X ₁₃ , X _13' double arrow, X ₂₁ axis, X ₂₂ axis, X ₂₃ radial half line, X ₃₁ , X _{31 '} axis, X ₃₂ axis, X ₃₃ radial half line, Z clamping axis, _{Z 11} Heavy arrow

Claims (26)

A method for machining a joint inner member (11) of a constant velocity joint, wherein the joint inner member (11) has a longitudinal axis (A) and has at least one guide surface. The joint inner member (11) is guided by the guide surface so as to be able to tilt around the entire circumference of the ball cage, and the joint inner member (11) is distributed over the entire circumference of the guide surface. A ball track (12), the ball track (12) dividing the guide surface into a corresponding plurality of guide webs (13), in which the torque transmitting balls are In the type adapted to be held so as to be movable in the longitudinal direction,
A method for machining a joint inner member of a constant velocity joint, characterized in that each at least one ball track (12) and at least one guide web (13) are mechanically machined simultaneously.   In the case of an odd number of ball tracks (12) and guide webs (13), one ball track (12) and one guide web (13) located on the opposite side in the radial direction are machined. Item 2. The method according to Item 1.   In the case of an even number of ball tracks (12) and guide webs (13), each one ball track (12) and one guide web (13) adjacent to the radially opposite ball track, The method of Claim 1 which processes simultaneously.   4. The method as claimed in claim 1, wherein each of the two ball tracks (12) and the two guide webs (13) is processed simultaneously.   In particular, each two ball tracks (12) located in parallel planes are simultaneously machined in the longitudinal direction at the same time, and at least partly simultaneously with at least one guide web (13) for both ball tracks (12). The method according to claim 1, wherein the processing is performed.   6. A method according to claim 5, wherein each two ball tracks (12) located in parallel planes are machined by tools (23, 24) driven together. A method for machining a joint inner member (11) of a constant velocity joint, wherein the joint inner member (11) has a longitudinal axis (A) and has at least one guide surface. The joint inner member (11) is guided by the guide surface so as to be able to tilt around the entire circumference of the ball cage, and the joint inner member (11) is distributed over the entire circumference of the guide surface. A ball track (12), the ball track (12) dividing the guide surface into a corresponding plurality of guide webs (13), in which the torque transmitting balls are In the type adapted to be held so as to be movable in the longitudinal direction,
A method for machining a joint inner member of a constant velocity joint, characterized in that at least two ball tracks (12) each are machined simultaneously in the longitudinal direction at the same time. A method for machining a joint inner member (11) of a constant velocity joint, wherein the joint inner member (11) has a longitudinal axis (A) and has at least one guide surface. The joint inner member (11) is guided by the guide surface so as to be able to tilt around the entire circumference of the ball cage, and the joint inner member (11) is distributed over the entire circumference of the guide surface. A ball track (12), the ball track (12) dividing the guide surface into a corresponding plurality of guide webs (13), in which the torque transmitting balls are In the type adapted to be held so as to be movable in the longitudinal direction,
A method for machining a joint inner member of a constant velocity joint, characterized in that at least two guide webs (13, 13 ') are machined in the longitudinal direction simultaneously.   In the case of an odd number of ball tracks (12) and guide webs (13), one first ball track (12) or web surface (13) respectively and a web surface or ball located on the opposite side in the radial direction The method according to claim 7 or 8, wherein the second ball track (12 ') or the guide web (13') adjacent to the track is processed simultaneously.   In the case of an even number of ball tracks (12) and guide webs (13), two ball tracks (12, 12 ') or guide webs (13, 13') located on opposite sides in the radial direction are processed simultaneously. The method according to claim 7 or 8.   The ball track (12) has a rotation axis (R) perpendicular to the longitudinal axis (A) of the joint inner member (11) and a longitudinal axis (A) relative to the joint inner member (11). 11. The method according to claim 1, wherein the machining is carried out by a rotating tool (21, 22, 23, 24) with a center point guided in a radial plane (X) extending therethrough.   The ball track (12) is machined by a rotary tool with a rotational axis oriented substantially radially with respect to the longitudinal axis (A) of the joint inner member (11), in which case the rotational axis is 11. The device according to claim 1, wherein the guide member is guided through a longitudinal axis (A) of the joint inner member (11) in a radial plane relative to the inner member (11). The method according to claim 1.   The guide web (13) is moved relative to the rotational axis (R) perpendicular to the longitudinal axis (A) of the joint inner member (11) and the joint inner member (11). 13), by means of a rotary tool (31, 32, 33) with a center point guided by a radial plane (X) extending through the longitudinal axis (A). The method according to claim 1.   Rotation of the guide web (13) with a center point that performs a pivoting movement about the longitudinal axis (A) of the joint inner member (11) in addition to the joint inner member (11). The method according to claim 13, wherein machining is performed by a tool. An apparatus for machining a joint inner member (11) of a constant velocity joint, the joint inner member (11) having a longitudinal axis (A) and having at least one guide surface The joint inner member (11) is guided by the guide surface so as to be able to tilt around the entire circumference of the ball cage, and the joint inner member (11) is distributed over the entire circumference of the guide surface. A ball track (12), the ball track (12) dividing the guide surface into a corresponding plurality of guide webs (13), in which the torque transmitting balls are In the type adapted to be held so as to be movable in the longitudinal direction,
The device comprises a clamping device for the inner joint member (11) and at least two rotary tools (21, 31) for simultaneously processing at least one ball track (12) and at least one guide web (13). For processing the joint inner member of the constant velocity joint. An apparatus for machining a joint inner member (11) of a constant velocity joint, the joint inner member (11) having a longitudinal axis (A) and having at least one guide surface The joint inner member (11) is guided by the guide surface so as to be able to tilt around the entire circumference of the ball cage, and the joint inner member (11) is distributed over the entire circumference of the guide surface. A ball track (12), the ball track (12) dividing the guide surface into a corresponding plurality of guide webs (13), in which the torque transmitting balls are In the type adapted to be held so as to be movable in the longitudinal direction,
The device comprises a clamping device for the joint inner member (11) and at least two rotary tools (21, 22) for simultaneously machining the two ball tracks (12, 12 ′) in the longitudinal direction. An apparatus for machining a joint inner member of a constant velocity joint. An apparatus for machining a joint inner member (11) of a constant velocity joint, the joint inner member (11) having a longitudinal axis (A) and having at least one guide surface The joint inner member (11) is guided by the guide surface so as to be able to tilt around the entire circumference of the ball cage, and the joint inner member (11) is distributed over the entire circumference of the guide surface. A ball track (12), the ball track (12) dividing the guide surface into a corresponding plurality of guide webs (13), in which the torque transmitting balls are In the type adapted to be held so as to be movable in the longitudinal direction,
The device has a clamping device for the joint inner member (11) and at least two rotary tools (31, 32) for simultaneously processing the two guide webs (13, 13 ′) in the longitudinal direction. An apparatus for machining a joint inner member of a constant velocity joint.   The clamping device for the joint inner member (11) has feed means for feeding at least in the longitudinal direction (Z) of the joint inner member, and at least two rotary tools are each exclusively in the longitudinal direction of the joint inner member. 18. A device according to any one of claims 15 to 17, comprising feeding means for feeding in a radial direction relative to the axis.   19. The device as claimed in claim 15, wherein the rotational axes (R) of all rotary tools that simultaneously engage the joint inner member (11) are located in a common plane.   20. The rotation axis (R) of the rotary tool is located in at least two planes parallel to each other, in particular the tool for smoothing the guide web is located in a second common plane. The device described.   The fastening device for the joint inner member (11) additionally comprises adjusting means for rotating the fastening device about the longitudinal axis (A) of the joint inner member (11). The apparatus according to any one of 15 to 20.   The rotary tool (21, 22, 23, 24) for the ball track (12) is a disc tool, and the axis of rotation of the disc tool is spaced from the longitudinal axis (A) of the joint inner member (11). 22. A device according to any one of claims 15 to 21, wherein the device is placed and intersected.   The rotary tool for the ball track is a finger tool, the axis of rotation of the finger tool being oriented substantially radially with respect to the longitudinal axis (A) of the joint inner member (11). The apparatus according to any one of 15 to 21.   The rotary tool (31, 32, 33) for the guide web (13) is a disc tool, and the axis of rotation of the disc tool is spaced from the longitudinal axis (A) of the joint inner member (11). 24. A device according to any one of claims 15 to 23, which intersects.   25. Device according to any one of claims 15 to 24, wherein the clamping device for the joint inner member (11) is adapted to clamp the joint inner member in the axial direction.   26. An apparatus according to any one of claims 15 to 25, wherein adjusting means are provided for rotating the rotary tool about the longitudinal axis (A) of the joint inner member (11).

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